Noise Floor Reduction in Frequency Delta-Sigma Modulation Microphone Sensors [PDF]
Sensors, 2021 Frequency delta-sigma modulator (FDSM) employing a variable frequency oscillator is a novel replacement of the classical delta-sigma modulators. This is advantageous for application to sensors, because an ADC can be intrinsically integrated with the ...
Koichi Maezawa +2 more
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Broad-spectrum antiviral activity of the sigma-1 receptor antagonist PB28 against coronaviruses [PDF]
Frontiers in MicrobiologyThe continuous evolution of coronaviruses poses persistent and severe threats to both human and animal health. While α- and β-coronaviruses mainly infect mammals, including humans, γ-coronaviruses predominantly infect poultry, causing substantial ...
Gaojie Song +10 more
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Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation
Guangtongxin yanjiu, 2022 In order to solve the problem that the laser satellite terminal can realize the ranging function while completing the communication function, this paper designs a method based on the Delta-Sigma modulation to realize the laser phase ranging, which can ...
Jin-xin ZUO +6 more
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Information, 2021 This work combines compressive sensing and short word-length techniques to achieve localization and target tracking in wireless sensor networks with energy-efficient communication between the network anchors and the fusion center.
Nuha A. S. Alwan, Zahir M. Hussain
doaj +1 more source
Optimal Design of Mobile Fronthaul Delta-Sigma Modulator based on Search Algorithm
Guangtongxin yanjiu, 2022 The Common Public Radio Interface (CPRI) used in mobile fronthaul has low spectrum efficiency. In this paper, we propose to use Delta-Sigma Modulation (DSM) technology as a new fronthaul interface.
WU Zi-qiang +3 more
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Low power all-digital radio-over-fiber transmission for 28-GHz band using parallel electro-absorption modulators [PDF]
, 2020 We present a low-power all-digital radio-over-fiber transmitter for beyond 28-GHz using sigma-delta modulation, a 140mW NRZ driver and parallel electro-absorption modulators. 5.25Gb/s (2.625Gb/s) 64-QAM is transported over 10-km SSMF at 1560nm with 7.6% (
Bauwelinck, Johan +12 more
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Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink
ICT Express, 2020 Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters.
Muhammad Usman Hadi +3 more
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Impulsive Sound Detection Directly in Sigma-Delta Domain
Archives of Acoustics, 2017 Recent implementations of Sigma-delta converters have achieved low cost, low power consumption and high integration while maintaining resolution as high as in Nyquist-rate converters.
Igor Dantas dos Santos MIRANDA +1 more
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Digital OFDM-PON Based on Delta–Sigma Modulation Employing Binary IM-DD Channels
IEEE Photonics Journal, 2017 In this paper, a delta–sigma modulation is proposed for the orthogonal frequency division multiplexed-passive optical network (OFDM-PON) to enable transmission of OFDM signals via binary intensity modulation and direct detection (IM-DD) channels ...
Cai Li +5 more
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Gain Error Correction for CMOS Image Sensor Using Delta-Sigma Modulation [PDF]
, 2010 A delta-sigma modulation analog-to-digital converter (ADC) has many benefits over the use of a pipeline ADC in a CMOS image sensor. This includes lower power, noise reduction, ease of maximizing the input range, and simpler signal routing for large ...
Baker, R. Jacob, Yap, Kuangming
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